Up for sale here is this set of two (2) new 2SD637 transistors.  These are used in a number of Technics turntables, including the SL-1200 MK2.  The 2SD637 is part Q2, Q3, and Q202 in the SL-1200 MK2. 

If you need a service manual for your Technics, just check out hifiengine.com or elektrotanya.com.  If you need a recap kit for the Technics SL-1200 MK2, I have that available here.  If you need a D1 bridge rectifier for your SL-1200 MK2, I have that here.

US shipping and handling is $7, and international is $21, no matter what quantity you buy. All my small parts are set up for combined shipping, so just use the "add to cart" feature and then check out all at once, and it will combine shipping. If you have any questions, please ask.

Looking for more parts? I have power switches, feet, pushbuttons, top case screws, bottom screws, faceplate screws, white LED fuse lamps, blue LED fuse lamps, 6.3v bi-pin bulbs, 8v bi-pin bulbs, 12v bi-pin bulbs, wired 8v 60ma bulbs, new power cords, new main capacitors for the Marantz 1060/2230, wired Pioneer speaker plug replacements, new 630v yellow film capacitors at 38 different values, new 1200v yellow film capacitors at 15 values, a large variety of transistors for vintage stereo repair, new Wima film capacitors for stereo repair, new 250v yellow film crossover capacitors, and more. Just use "add to cart" on everything you want and then check out for combined shipping.